<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <script src="./vue.min.js"></script>
    <title>Document</title>
</head>

<body>
    <div id="app">
        <div v-changecolor="color" id="demo">
            {{num}}
        </div>
        <div>
            <button @click="add">Add</button>
            <button onclick='unbind()'>unbind</button>
        </div>
    </div>
    <script type="text/javascript">
        function unbind() {
            console.log('unbind');
            app.$destroy();
        }
        Vue.directive('changecolor', {
            bind: function (el,binding) {//被绑定
                console.log('1 - bind');
                el.style.color = binding.value;
            },
            inserted: function () {//绑定到节点
                console.log('2 - inserted');
            },
            update: function () {//组件更新
                console.log('3 - update');
            },
            componentUpdated: function () {//组件更新完成
                console.log('4 - componentUpdated');
            },
            unbind: function () {//解绑
                console.log('5 - unbind');
            }
        })
        var app = new Vue({
            el: '#app',
            data: {
                num: 10,
                color: 'red'
            },
            methods: {
                add: function () {
                    this.num++;
                }
            }
        })
    </script>
</body>

</html>